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Lubricating oil effects on the transient performance of a turbocharged diesel engine

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  • Giakoumis, Evangelos G.

Abstract

The modeling of transient turbocharged diesel engine operation appeared in the early seventies and continues to be in the focal point of research, due to the importance of transient response in the everyday operating conditions of engines. The majority of research has focused so far on issues concerning thermodynamic modeling, as these directly affect performance and pollutants' emissions. On the other hand, issues concerning the dynamics of transient operation are usually over-simplified, possibly for the sake of speeding up program execution time. In the present work, an experimentally validated transient diesel engine simulation code is used to study and evaluate the importance of the lubricating oil properties (oil-type, viscosity, temperature) on the transient response of a turbocharged diesel engine. It is revealed how the lubricating oil affects mechanical friction and hence, the speed response as well as the other interesting parameters, e.g. fuel pump rack position or turbocharger operating point for load-change schedules typical in the European Transient Cycles for heavy-duty engines. Particularly under low ambient conditions, the high oil viscosity is responsible for a significant increase in the respective frictional losses worsening the engine transient response.

Suggested Citation

  • Giakoumis, Evangelos G., 2010. "Lubricating oil effects on the transient performance of a turbocharged diesel engine," Energy, Elsevier, vol. 35(2), pages 864-873.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:2:p:864-873
    DOI: 10.1016/j.energy.2009.08.009
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    Cited by:

    1. Zare, Ali & Bodisco, Timothy A. & Nabi, Md Nurun & Hossain, Farhad M. & Rahman, M.M. & Ristovski, Zoran D. & Brown, Richard J., 2017. "The influence of oxygenated fuels on transient and steady-state engine emissions," Energy, Elsevier, vol. 121(C), pages 841-853.
    2. Deligant, M. & Podevin, P. & Descombes, G., 2012. "Experimental identification of turbocharger mechanical friction losses," Energy, Elsevier, vol. 39(1), pages 388-394.
    3. Gonca, Guven & Sahin, Bahri & Parlak, Adnan & Ayhan, Vezir & Cesur, Idris & Koksal, Sakip, 2017. "Investigation of the effects of the steam injection method (SIM) on the performance and emission formation of a turbocharged and Miller cycle diesel engine (MCDE)," Energy, Elsevier, vol. 119(C), pages 926-937.

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